Question

What is the probability of getting an order from A or an order that is accurate

Answer 1

The present question consists of calculating the probability of a randomly picked order to be one of the green ones, it is Accurate or Restaurant A order.

Let's calculate the total number of orders:

`\begin{gathered} N=(320+35)+(265+53)+(247+33)+(126+20) \\ N=355+318+280+146 \\ N=1099 \end{gathered}`

Now, we calculate the orders which are or from Restaurant A or Accurate.

`\begin{gathered} n=35+320+265+247+126 \\ n=993 \end{gathered}`

Now, to calculate the probability it, we divide n by N.

`P=(n)/(N)=(993)/(1099)\cong0.904`

The probability of the order to be from Restaurant A or Accurate is equal to:

0.904